• Server Tech

    Has Energy Efficiency been a Criterion to select your Servers?

    We employ a number of criterion (like number of sockets, processing power, memory capacity, etc.) to select the mostĀ appropriateĀ servers for our data centers. But, does energy efficiency figure among those? Should it? Of course it should. In most cases, electricity costs incurred by running a server might be more than the cost of the server itself! According to the EPA report: In 2011, data centers accounted for 3% of all the electricity consumption in US (mostly due to the servers employed in them). Each server can consume up to 8600 kWh of energy, annually. Those are big numbers and obviously translate into big costs, especially for a data center with…

    Comments Off on Has Energy Efficiency been a Criterion to select your Servers?
  • Server Tech

    IBM’s ODIN – Open Data-center Interoperable Network guidelines

    “ODIN (Open Data-center Inter-operable Network) is a set of technical briefs which describe best practices for developing a flat, virtualized, converged data center network based on open industry standards” is what IBM’s FAQ document says about ODIN. When companies are building large cloud-scale data centers, it is important to consider open-standards and multi-vendor compatibility while designing the network architecture. Even though IBM offers its own line of networking solutions for the data center, I think the ODIN is a good initiative and a number of other networking vendors also seem to think so. These are some of the objectives of designing a network according to ODIN principles: Scaling of networks…

    Comments Off on IBM’s ODIN – Open Data-center Interoperable Network guidelines
  • Server Tech

    Advantages of a Server over a Desktop Computer – Why is a Server required?

    As you might know, Computer Servers are powerful computers which are accessed by multiple users. But, what exactly are the advantages of a Server over a desktop? Why should one buy a Server instead of a PC? Let us look at some of the major advantages of a Computer Server (over a computer), in this article. We are primarily interested in the hardware level differences. Advantages of a Server over a desktop computer: Servers contain more powerful processors than a desktop computer. They support multiple processors, multiple cores and multiple threads. So, a lot of virtual machines can reside in a single server without any compromise in performance. Servers support…

  • Server Tech

    Data Center Network – Top of Rack (TOR) vs End of Row (EOR) Design

    When there are a lot of servers to connect (like in a Data Center), networking needs to be flexible enough to support the compute power required for large installations. Two popular network designs used in such circumstances – TOR (Top of Rack) and EOR (End of Row). Let us look at the advantages and disadvantages of both approaches, in this article. TOR – Top of Rack design: In a Data Center, there are several racks of servers/ storage equipment. Each rack contains multiple computing devices. The TOR – Top of Rack approach recommends Network Switches to be placed on every rack and all the computing devices present in the rack…

  • Server Tech

    Advantages of Modular Data Centers – Whole Data Center in a Box!

    How would you like your data center to be ready in weeks, instead of months? How would you like your data center to be shipped to you in a single container box, intact with all internal connections, cooling facilities, power routing lines, monitoring facilities and practically everything else you normally get with a full fledged data center? That’s exactly what Modular Data Centers are here to offer. Let us look at a short introduction video and some advantages offered by modular data centers, in this article. First, have a look at this short video introducing a modular data center: Though the video is from a particular vendor, it does a…

    Comments Off on Advantages of Modular Data Centers – Whole Data Center in a Box!
  • Server Tech

    What are Micro-Servers?

    Micro Servers are optimized low capacity/ low power server units which are packed in a dense configuration using a custom built chassis that can be used for handling a large number of simple computational workloads (Like serving web pages to a large number of users, social networking applications, cloud computing applications, etc).

    Comments Off on What are Micro-Servers?
  • Server Tech

    SME Server – Linux based Open Source Network & Communications Server

    SME Server is a Linux based Open Source freely download-able GUI based Server package that gives you all the functionalities you might want in a Network & Communications Server like DNS, DHCP, Web Server, Mail Server, File Server, Internet Sharing, etc. Importantly, SME Server gives you all those functionalities in a single package and you can install it using the GUI interface within 20 minutes! Yeah, it can be downloaded free of cost.

    Comments Off on SME Server – Linux based Open Source Network & Communications Server
  • Server Tech

    Server Adapter Teaming & Link Aggregation

    It is possible to group multiple server adapters (NIC) / server adapter ports to achieve a combined throughput capacity of multiple adapter ports/ links. In the process, we can also achieve fault tolerance, load balancing & high availability for server adapters (NIC). Let us explore Server Adapter Teaming & Link Aggregation, in this article.

    Comments Off on Server Adapter Teaming & Link Aggregation
  • Server Tech

    What is a Reverse Proxy server?

    A Reverse Proxy server is a web-server-alias that sits in-between the Client/ Internet (from where the web-page requests arrive) and the actual web server (origin server, which holds the web page content to be served to users). The reverse proxy server accepts the web page requests, sends them to the origin server (if that content has not been cached by the reverse proxy server), gets the web-page/ output and sends it back to the client.

    Comments Off on What is a Reverse Proxy server?
  • Server Tech

    A note on Server Memory – DDR3 SDRAM

    In this article, we will discuss about one of the most important components of a Server, after the Server Processor – Primary Memory (RAM). We will see how server memory is different, what is DDR3 RAM, what are DIMM’s, what are registered and unregistered memory modules with a small reference architecture diagram. Architecture diagram: The above architecture diagram is just a reference architecture for server memory, and other configurations are very much possible. In the diagram, there is a server processor, a memory controller (sometimes within the server processor), three individual channels going out of the server processor to connect to the DIMM’s which hold the individual RAM chips –…

    Comments Off on A note on Server Memory – DDR3 SDRAM
  • Server Tech

    Server Colocation – Advantages, disadvantages & Alternatives

    Server Co-location refers to the practice of physically re-locating your server(s) from your office/ server room to a fully managed data center, outside your premises. In this article, we will see why it is advantageous for companies to do that & what factors drive server co-location. We will also see the limitations of server co-location and a brief note on alternative technologies to server co-location.

    Comments Off on Server Colocation – Advantages, disadvantages & Alternatives
  • Server Tech

    Expand your Server Storage with JBOD – Just a Bunch Of Disks

    JBOD (Just a Bunch Of Disks) is the most cost effective way to increase the Direct Attached Storage (DAS) capacities on servers. In this article, we will see what is JBOD and how you could expand your server storage with JBOD quickly and easily. We will also have a look at the chassis based enterprise level JBOD’s that are available. What is a JBOD? As the acronym goes, JBOD stands for Just a Bunch Of Disks. If you have, say three disks in your server you could use JBOD to combine all the three disks and make it appear as a single larger disk to applications. JBOD is also used…

    Comments Off on Expand your Server Storage with JBOD – Just a Bunch Of Disks
  • Server Tech

    A note on Server Storage – SAS (Serial Attached SCSI), SAS Controllers & SAS Drives

    Serial Attached SCSI (SAS) has become the favorite interface for enterprise server storage (hard drives/ SSD's). In this article, we will explore the advantages of SAS to understand the reason behind their popularity. We will also shortly explore about SAS controllers and SAS drives.

    Comments Off on A note on Server Storage – SAS (Serial Attached SCSI), SAS Controllers & SAS Drives
Bitnami